Search results for "UHPLC-HESIMS"

showing 1 items of 1 documents

Effect of storage on quality parameters and phenolic content of Italian extra-virgin olive oils

2019

The quality of extra virgin olive oils is affected mainly by hydrolytic and oxidative reactions. The present paper investigated the changes of major and minor components and oxidation indices of three monovarietal extra virgin olive oils after 18 months of storage at room temperature and in dark glass bottles conditions. After storage, the basic quality parameters such as free acidity, peroxide values, extinction coefficients, fatty acids composition, chlorophyll and carotenoid content, did not exceed the upper limits set by European Community Regulations for extra-virgin olive oils. Given the importance of the phenolic fraction, UHPLC-HESI-MS metodology was used. A decrease in 3,4-DHPEA-ED…

OleacinIridoid GlucosidesUHPLC-HESIMSFraction (chemistry)Plant Science01 natural sciencesBiochemistryPeroxideAnalytical Chemistrychemistry.chemical_compoundHydrolysisUHPLC-HESI-MSGlucosidesPhenolsOleuropeinFood QualityIridoidsFood scienceOlive OilCarotenoidPyranschemistry.chemical_classification010405 organic chemistryFatty AcidsOrganic Chemistry0104 chemical sciencesTyrosol010404 medicinal & biomolecular chemistryFood StorageItalychemistryoleochantalChlorophyllHydroxytyrosoloil agingOxidation-ReductionhydroxytyrosolNatural Product Research
researchProduct